/Engine/Source/Runtime/Slate/Public/Widgets/Navigation/SBreadcrumbTrail.h
Callback for getting the menu content to be displayed when clicking on a crumb's delimiter arrow
typedef TBaseDelegate_OneParam< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) >, const ItemType & > FGetCrumbMenuContent